Fish treating machine and method



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Nov. 14, 1939'. BAADER ETSI- TREKKING' .MESI-HNE AND` METHOD Filed om.. 24s 1955 18T Sheets-Sheet. 5E

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FISH TREATING MACHINE AND METHOD Filed Oct. 24, 1935 18 SheetS-Shet 8 XXI Fig. 15. 14001 /NvE/vro .wwma

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` FISH 'IRFA'JJIHG MACHINE AND METHOD Filed'locnaz. 1955 18 sheets-sheet 11 FgJQ.' 235 338 242;

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not be dressed with accuracy. Action on both j dorsal andventral surfaces o1' such sh is important in the production of illets. The ish to f p the knives 38 and 39 occurs in the sh;

be dressed vary in size.

'I'he main object of the present invention is to solve the problem of dressing large sh with such precision that the maximum quantity of sound.

edible ilesh is produced while leaving a minimum quantity on the bones. Further objects include, among others, the provision of a method for dressing large iish, the provision of a machine which will dress large fish; the provision oi' a new and improved means of moving large ilsh for action thereupon, the provision of an improved means for removing the ns from sh, the provision of a unique method oi dressing sh-including conveying the iish through a xed point and adjusting operating instrumentalities according to the length of a portion of the sh conveyed through -said xed point, the provision of improved means for timing operating instrumentalities, and the provision of animproved means for holding and centering fish to be acted upon. Still further objects include the provision of specic instrumentalities for carrying out the method referred to above.

'I'hese objects and other objects which will hereinafterappear are obtained by the novel methods andthe unique arrangement and construction of elements hereinafter described and claimed. One machine embodying the present invention and adapted for carrying4 out the method thereof is disclosed in the accompanying eighteen sheets of drawings hereby made a part of this specii'lcation and in whichf Figure 1 is a plan view` omitting most of the details of the general layout of a machine embodying the present invention, indicating the stations at which the several steps of the process are carried out;

Figure 2 is an enlarged -plan view of the clamp and associated parts;

- Figure 3 is a vertical section von line III-Ill of Figure 2, showing the sh being grasped by the clamp, and about to be carried around on the track 30;

Figure 4 is an elevational detail View of a clamp 'at the same position as Figure 3, showing Part of the clamp mechanism in section in order to illus trate the internal structure;

Figure 5 is a view taken on the line V-V in Fig ure 6 with parts broken away to more clearly illustrate other parts; 1

Figure 6 is a plan view partly in section of the Figure 10 is a vertical section on the line X-X of Figure 5, parts in the background of the igure having been omitted to more clearly disclose the guides 36 and 3l and ass ciated supporting structure;

Figure-11 is a view similar to that of Figure-16 but with the parts in different working position;

Figure 12 is a vertical section on the line XII-XII of Figure 6, sleeves 60 and 6i having been broken away tomore completely illustrate the underlying structure K Figure 13 is aview similar to that of Figure l12 but with the parts in diierent working position;

Figure 14 is a plan view of the fillet cutting mechanism at station B to C of Figure 1;

Figure 15 is a side elevation of the fillet cutting mechanism on the line XV-XV of Figure 14, the part 265 being broken away to show a portion of the part 286;

Figure 16 is a detail view on the same plane as that of Figure 15 and showing a part of the guide moving mechanism, overlying parts having been broken away to more completely illustrate the guide moving mechanism;

Figure 17 is a vertical section on the line XVII-XVII of Figure 14, showing the contacting Figure 1s is a vertical section on the une xvm-xvm of Figure 14:

aWBly on the line on the line XXV-)DIV of ,Figure 15;

` 45 Y Figure 19 is' a vertical section on the line,

' several treating Figure 26 is a vertical section on the line XXVI-XXVI of Figure 15;

Figure 27 is a view similar to part of Figure 26 showing the plates and flaps shown in Figure 26 in different working position;

v Figure 28 is a Vertical section on the line XXVIII- nvm of Figure 15;

Figure 29 is a view of the mechanism shown in Figure 28 with the parts in diil'erent working position;

Figure 30 is a section of the mechanism of Figure 29 on line XXX-m in Figure 29;

Figure 31 is a horizontal 4section on XXXI- XXXI of Figure 19;

Figure 32 is a view or' some of the parts of Figure 31 in dierent working position;

Figure 33 is a vertical section on the line XXXIII- m of Figure 19;

Figure 34 is a vertical section .on the line miv-XXXIV of Figure 19 showing a part of the device of Figure 19 but in dierent working position;

Figure 35 is a claried guides;

Figure 36 is a clarified view ofthe V guides in one position relative to a sh;

Figure 37 is a claried view of the V guides of Figure 36 in a dierent and later position relative to a sh;

Figure 38 is a clarified view of the bobbin and W de inworking position with reference to the Figure 39 is a claried view of the outer set of horizontal knives and some of the guides associated therewith;

Figure 40 is a clariiled View of the inner horizontal knives and `a pair of guides associated therewith;

Figure 4l is a detail from above of the mechanism which drives the inclined knives;

Figure 42 illustrates diagrammatically the action -oi? guides 20B and 2I2 on the sh;

Figure 43 is a view similar to Figure the parts in a different working position;

Figure 44 illustrates diagrammatically the way in which the plate |45 of arm I45b engages the iish and the operating instrumentalities are adjustes thereby:

Figure 45 is a view similar .to Figure the line view of several of the 42' with 44 with the parts in a different working position;

Figure 46 illustrates diagrammatically the way in which cams 324 and 325 control the engagement of nap-holding plates with the sh; and

Figure 4'7 is a view similar to'Figure 46 with the parts in a diierent working position.

Likereference characters are used to indicate similar elements in the drawings andin the following description. I Fish before being acted upon by the method and devices of this invention are cleaned and decapitated. The ish are then ied tail rst to .-the dressing machine. They are gripped in the machineby the tail and moved tail rst through a selected course along which arelocated the instrumentalities. Guides in each instrumentality position the body of the ish for action thereon. The body is not held continuously in any guide or conveyor, but passes, -freely floating, so to speak, through the several guides. A

The share rst moved through guides which lift the fishV and straighten the backbones, then nn straighteners lift and straighten bent fins. The guides center the iish for the action of the iin straighteners and holders maintain the in centered position. 'I'he several guides, holders and tools in the machine contact the dorsal and ventral surfaces o'f the sh and exert a braking iniluence 'on the iish, keeping the backbones substantially straight, a slight curvature being caused by the fact that the path of ,the iish is circular. As the iish leaves the holders, knives remove the dorsal and ventral fins, cutting slightly below the skin and removing a4 narrow strip of flesh together with the fins and the pivotal portions at the bases of the ns. The pivotal portions are wider than the spines to which they are attached, and after they are removed knives' may cut closer to the spines and backbones than otherwise.

Each fish passes under theend of a contact arm, whose movement is controlled by the portion of fish which passes thereunder, and which regulates in part the action of .the machine. It has been found that the bones of a ilsh vary in size directly with the length of the sh and that the increase in size issubstantially uniform from v one end of the ilsh to the other, so that by setting the rst group of lleting knives originally according to the length of the fish and opening them uniformly at the same rate a setting is obtained which cuts as close as possible to the bones, leaving the minimum amount of flesh on the bones. The second group of nileting knives is set initially at the same selected separation for ail sh and the separation is increased uniformly as the ilsh passes. A plurality of guides center and hold the sh centered for the action of the knives. The fish lies side up while in the machine and the'guides lift it and engage the dorsal and ventral surfaces to hold the fish centered vertically and horizontally.

Each operation is performed on both sides of the sh simultaneously, insuring uniform action.

Figure 1 shows in plan view chine embodying the present invention. Figure 1 also indicates the stations at which the various steps are carried out.' Moving clockwise about the circular track, from stationA to station B the sh is straightened andthe iins removed and from station B to station C the filleting cuts are made, the iish being contacted for adjusting the lleting means approximately at station B. No attempt is made in Figure l to show the several mechanisms involved. A rotary feeding plate or table I initially receivesthe cleaned and decapitated flsh. The table I is mounted for rotation'on a shaft 2. Projections 3 about the edge of the table extend from the top face of the table and have the upper portions thereof directed backwards with respect tothe rotation of the table. The iish are inserted under the' said backwardly directed por.-

tions of the projections 3, 'which serve to position the tails to be grasped In the form of device rotatably mounted in a holder sleeve 1a. A lower clamp vjaw II is secured tothe top of clamp holder 1. An upper jaw I2 is pivoted to jaw II at I3. Away from the pivot I3 the jaws II and y I2 are opposed and are provided with intermesha part of a may 

